{"cve_id":"CVE-2021-36742","published":"2021-07-29T20:15:07.650000+00:00","last_modified":"2026-06-17T03:59:05.680000+00:00","vuln_status":"Analyzed","description":"A improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG and Worry-Free Business Security 10.0 SP1 allows a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","base_score":7.8,"base_severity":"HIGH","attack_vector":"LOCAL","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-20"],"in_kev":true,"kev_date_added":"2021-11-03","kev_ransomware":false,"epss_score":0.01482,"epss_percentile":0.73963,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"USER","req_vector":"LOCAL","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:46:15.678744+00:00","first_seen":"2021-07-29T20:15:07.650000+00:00","kev_first_seen":"2021-11-03T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["microsoft","trendmicro"],"products":["apex_one","officescan","officescan_business_security","windows","worry-free_business_security"],"affected":[{"vendor":"trendmicro","product":"apex_one","ranges":["2019"]},{"vendor":"trendmicro","product":"officescan","ranges":["xg"]},{"vendor":"trendmicro","product":"officescan_business_security","ranges":["10.0"]},{"vendor":"trendmicro","product":"worry-free_business_security","ranges":["10.0"]}]}